Your files stay on your Mac.
GIF stores images with a 256-color palette; TIFF stores pixels losslessly at full color depth. Convertessa converts each GIF to TIFF on your Mac, preserving resolution and stripping embedded metadata—no file ever leaves your machine. The result opens directly in Photoshop, Lightroom, and any print workflow that expects TIFF.
Drag one GIF or an entire folder onto Convertessa. All files are processed locally—nothing is uploaded.
Choose TIFF from the output format list. Convertessa writes standard TIFF files compatible with professional image editors and print workflows.
Click Convert. Your TIFF files appear in the same folder as the originals, ready to open or print.
Images, audio, video, documents, archives and eBooks — all converted natively, right on your Mac.
Pick a format you have — see everything Convertessa can turn it into.
Convert hundreds of files at once with per-type group defaults and individual overrides.
First-class support for HEIC, AVIF and WebP — encode and decode, both ways. Read JPEG XL and a dozen more modern formats too.
Drop files anywhere on the window. Native, instant, and exactly what you’d expect on a Mac.
Dial in compression, resolution and bitrate. Keep originals pristine or shrink for sharing.
Never overwrite a file by accident. Convertessa appends safe suffixes automatically.
Every job is logged locally. Re-run a previous conversion or revisit recent outputs in a click.
Bundle your converted files straight into a single ZIP, TAR or 7z — packaged and ready to share the moment a job finishes.
Right-click any file in Finder and choose Convert. A Quick Action handles it on the spot — no need to open the app first.
Shrink Convertessa to a tidy mini window that tucks into a corner — just a drop zone and a format picker for quick, one-off conversions.
No cloud. No account. No upload. Every conversion happens entirely on-device, using the power already in your Mac. What you convert is nobody’s business but yours.
Script conversions, wire them into your build, or batch a folder from the terminal. The same engine, no GUI required.
Read the full CLI documentation →Shrink Convertessa down to a small, focused window — drop, convert, done, with your recent conversions one click away.
macOS 14+ · Apple Silicon & Intel
New formats, new features, and fixes — every release, on the record.
Yes. Each frame of an animated GIF is exported as a separate TIFF file, named sequentially (e.g. image_001.tiff, image_002.tiff).
Almost certainly yes. GIF uses indexed color (up to 256 colors), while TIFF stores full color depth losslessly. The larger file size reflects the richer pixel data—ideal for print or further editing.
Yes. Drop a folder onto Convertessa or run convertessa ./folder --to tiff in the terminal to batch-convert every GIF inside.